[INFO] fetching crate serde_bencode 0.2.4... [INFO] checking serde_bencode-0.2.4 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate serde_bencode 0.2.4 into /workspace/builds/worker-3-tc2/source [INFO] validating manifest of crates.io crate serde_bencode 0.2.4 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml [INFO] started tweaking crates.io crate serde_bencode 0.2.4 [INFO] finished tweaking crates.io crate serde_bencode 0.2.4 [INFO] tweaked toml for crates.io crate serde_bencode 0.2.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate crates.io crate serde_bencode 0.2.4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1eb3a6429c6e1cc6ec39b6bf6b3d85467bdea5c86795df8bbab977e82b32f760 [INFO] running `Command { std: "docker" "start" "-a" "1eb3a6429c6e1cc6ec39b6bf6b3d85467bdea5c86795df8bbab977e82b32f760", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1eb3a6429c6e1cc6ec39b6bf6b3d85467bdea5c86795df8bbab977e82b32f760", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1eb3a6429c6e1cc6ec39b6bf6b3d85467bdea5c86795df8bbab977e82b32f760", kill_on_drop: false }` [INFO] [stdout] 1eb3a6429c6e1cc6ec39b6bf6b3d85467bdea5c86795df8bbab977e82b32f760 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 47b204db27a284e7ef3aa43032971cce9a13656ad4ce26e4fd46bd2c399dd7b3 [INFO] running `Command { std: "docker" "start" "-a" "47b204db27a284e7ef3aa43032971cce9a13656ad4ce26e4fd46bd2c399dd7b3", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling proc-macro2 v1.0.69 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Compiling serde_derive v1.0.188 [INFO] [stderr] Checking serde_bytes v0.11.12 [INFO] [stderr] Checking serde_test v1.0.176 [INFO] [stderr] Checking serde_bencode v0.2.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/ser.rs:95:69 [INFO] [stdout] | [INFO] [stdout] 94 | impl<'a> SerializeMap<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 95 | pub fn new(ser: &'a mut Serializer, len: usize) -> SerializeMap<'_> { [INFO] [stdout] | ^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/ser.rs:95:69 [INFO] [stdout] | [INFO] [stdout] 94 | impl<'a> SerializeMap<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 95 | pub fn new(ser: &'a mut Serializer, len: usize) -> SerializeMap<'_> { [INFO] [stdout] | ^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `0` and `1` are never read [INFO] [stdout] --> examples/parse_torrent.rs:9:13 [INFO] [stdout] | [INFO] [stdout] 9 | struct Node(String, i64); [INFO] [stdout] | ---- ^^^^^^ ^^^ [INFO] [stdout] | | [INFO] [stdout] | fields in this struct [INFO] [stdout] | [INFO] [stdout] = help: consider removing these fields [INFO] [stdout] = note: `Node` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.08s [INFO] running `Command { std: "docker" "inspect" "47b204db27a284e7ef3aa43032971cce9a13656ad4ce26e4fd46bd2c399dd7b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "47b204db27a284e7ef3aa43032971cce9a13656ad4ce26e4fd46bd2c399dd7b3", kill_on_drop: false }` [INFO] [stdout] 47b204db27a284e7ef3aa43032971cce9a13656ad4ce26e4fd46bd2c399dd7b3